US Bridges

I 270 Ebnd Ml over Washington Street

Fair

Adams County, Colorado · Just East of I-25 Ramp; U · Structure no. E-17-QH

Built
2003
22 years old
Condition
Fair
inspected December 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
172 ft
1 main span
Daily traffic
37,500
2020 count
Owner
State
State Highway Agency

About this bridge

I 270 Ebnd Ml over Washington Street is a prestressed concrete box beam or girders - single or spread carrying I 270 Ebnd Ml over Washington Street in Adams County, Colorado. It was built in 2003, so it is 22 years old, younger than the Colorado average of 42.2 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 37,500 vehicles a day, roughly 14% of them trucks, projected to reach 47,250 by 2040. The structure is 172 ft (52.5 m) long and 85 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesI 270 Ebnd Ml
CrossesWashington Street
LocationJust East of I-25 Ramp; U
RouteInterstate 270B
Coordinates39.82733, -104.97836
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating50 US tons
Inventory rating25 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 25 or greater
Structure length172 ft (52.5 m)
Longest span170 ft (51.8 m)
Deck width85 ft (25.9 m)
Roadway width82 ft (25 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic37,500 (2020)
Projected traffic47,250 by 2040
Trucks14%
Lanes on structure4
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was I 270 Ebnd Ml over Washington Street built?

It was built in 2003, making it 22 years old in 2025.

What condition is I 270 Ebnd Ml over Washington Street in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in December 2024.

How much traffic does I 270 Ebnd Ml over Washington Street carry?

About 37,500 vehicles per day (2020 count), of which roughly 14% are trucks.

How long is I 270 Ebnd Ml over Washington Street?

The structure is 172 ft (52.5 m) long with a longest span of 170 ft (51.8 m) and a deck 85 ft wide.

Who owns I 270 Ebnd Ml over Washington Street?

It is owned by the State Highway Agency.